The key is 100% boycotting all services provided by a company. Wikipedia’s list of Amazon product/services as reference (https://en.wikipedia.org/wiki/List_of_Amazon_products_and_services).
Incidentally, I know entire neighborhoods that don’t have other grocery stores besides Target/Whole Foods, not to mention that AWS is the cloud computing industry standard… As a personal example, my vet-prescribed cat foods are manufactured by Purina, a subsidary of Nestlé (needless to say, a separate but also extremely evil large corporation)
Boycott is the wrong word.
Permanently change your spending habits. A temporary change a company can ignore, but permanent change in spending will affect them.
You can’t avoid everything 100% of the time but simply closing your Amazon account and not ordering their trash EVER AGAIN will make a difference.
Every one of us needs to change permanently to not empower this oligarchs any more.
That is a good idea. I’ll close my account as well.